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BBC
4 年
Why do animals have different teeth?
Meat eating animals have teeth like this, for slicing and ripping. You should try giving him a steak. Carnivores and herbivores have different types of teeth, to suit the type of food they eat.
healthday on MSN
5 天
Scientists Identify Genes That Shape People's Teeth
Ever wonder why your teeth look the way they do?A group of genes drive the shape of each person’s teeth, including at ...
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